Road sceapee



3 Sheets- Sheet 1.

(No Model.)

M. E. COOK.

ROAD summa.l No. 359,848. Patented Mar. 22, 1887..

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RAD SGBAPER.

(No Model.)

Patented Mar. 22, 1887.

N. PEYERS. PmwLnmm-.xmm wnhingion D 0 3 Sheets-Sheet 3.

(No Model.)

M. E. 000K.

RoAD SGRAPER.

No. 359,848. Patented Mar. Z2, 1887.

UNITED STATES Parar tries..

MARCUS E. COOK, OF WALLING-FOR-D, CONNECTICUT, ASSIGNOR TO THE AMERICAN ROAD MACHINE COMPANY, OF KENNETT SQUARE, PA.

ROAD-SCRAPER.

SPECIFICATION forming part of Letters Patent No. 359,848, dated March 22. 1987.

Application filed May 19, 1886. Serial No. 202,613. (No model.)

To @ZZ whom it may concern:

Be it known that l, Marrons E. Coon, of ll'lallinglord, in the county of New Haven and State of Connecticut, haveinvented a new Iniprox-erneut in Road-Scrapers; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description orn the saine, and io which said drawings constitute part of this speciiication, and represent, in;

Figure l, a top or plan view of the machine; Fig. 2, a side viewof the saine, a portion of the bracket Y broken away to show the opening i5 through which the lever T works; Fig. 3, a transverse section in rear of the scraper and forward of the rear wheels, looking forward, and showing a sect-ion through the counterbalancing device; Fig. 4, a perspective View 2o of a portion of the uprights O; Fig. 5, a perspective view of the slide or nut into which the setscrews work.

This invention relates to auimprovementin that class of machines employed in leveling and forming the bed of common roads, and which consists in a frame arranged upon wheels adapted to he drawn hy animals,and in which a scraper is arranged to work upon the surface of the road under an advance movement, 3c and in which the scraper' is made adjustable to different angles and different elevations,the

object of the present invention beinga simple construction of machine, and onein which the adjustment of the scraper may be made with great facility, and in which the draft upon the scraper may be made in the most direct manner; and it consists in the construction as hereinafter described, and more particularly recited in the claims.

The frame, which is made, preferably, from iron, consists of two sides, A A, supported at the rear upon an axle, B, between two wheels, C C, on the said axle. The frame extends forward, and is contracted to a king-bolt, a, on a forward axle, D, which carries the two forward wheels, E E, and to which axle the animals a-re attached in the usual manner for thepropulsion ol' the apparatus.

F is the scraper, which is of the requisite 5o length in proportion to the machine, and, as

in the usual construction, it is arranged between the rear and forward wheels, and so as to loe adjusted to different angles therein with relation to the path of the wheels, such adjustability being indicated in Fig. l. In order to apply the draft directly to ihe scraper, and thereby greatly relieve the frame from the strain of such draft, I apply what I call a goose-neck,77 G, its forward end hung, iref erably, to the frame justin rear of ihe kingbolt, and as at I). It is made of iron, and extends rearward bcneath the frame, and at its rear end turns downward and forward, and is Aconnected to the scraper hy a pivot,as seen at (l, Fig. 4. This pivotal connection permits the scraper to be turned to its various angulaipositions, but brings the draft of the gooseneclr directly upon the scraper, and so that the scraper is propelled by the goose-neck thus engaged with it.

Attached to the scraper, and extending for ward from its upper edge, is a segement, H, concentric with .the pivot d, upon which -the scraper turns. This segnient'works through a guide or support, I, attached to or made a part of 'the goose-neck, and so that as the scraper is rotated upon its center the segment works through the said support as a guide.

Upon each side oi' the l'raine and parallel therewith, is a guidchar, J, and from which arms K extend inward toward the frame, and hinged thereto, as at e, (see Fig. 3,) and so that the said guide-har may he adjusted np and down to different elevations, and to thus adjust the guide-bars, avertical leading-screw, L, is arranged upon one side, and a like screw, M, upon the opposite side, these screws being arranged for free rotation under the action of hand-wheels N, or their equivalents. These screws are supported in uprights O, and in each upright is a sliding nut, I), from which 'links Q extend, respectively, to the arms K or guidebars, and so that as the screws L M are rotated in one direction, either or both, the

guidebar in connection with the screw so l turned will be raised or lowered, according to the direction in which the screw is turned, as indicated in broken lines Fig. 3. On the guide-har on one side is a slide, j', to which a link, B, is attached by one end, the other end of the link hung to the 'scraperv near one end, as at g, and on the other guidebar J is a like IOO slide, 11 to which one end of a link, S, is hungp the other end of the link hung at the opposite end of the scraper, as at fi, Fig. l. The arrangement ofthe slidesf 7i and their respective links with relation to thescraper are such, as seen in Fig. 1, that as thescraper stands at one extreme one slide, h, will stand at its eXtreme point on its bar J, and the other slide, j', will stand at the opposite extrenxeof its bar J, and so that as the scraper is rotated, turning upon its center, the respective slidesfh will move along the respective bars, the links turning in their connections between the slides and the scraper, so that as the scraper is turned from one extreme, as seenin Fig. 1,to the opposite extreme, the relative position of the slides and links will be reversed, as indicated in broken lines, Fig. l. This enables the scraper to be turned from an extreme angle in one direction to the path of the advancing machine to the opposite extreme, and of course is adapted to rest at any intermediate point.

By the connection of the links with lthe guidebars J, if the guide-bars be raised or lowered, the scraper will be raised or lowered accordingly; hence the elevation of the scraper may be adjusted by turning the respective screws L M. If one end is to be raised independent f the other, then the screw toward that end of the scraper will be turned accordingly, and vice versa. The framework may be provided with a flooring upon which `the operator may stand to work the screws to adjust the elevation of the scraper.

The scraper is often employed to dig into a bank at one side or the other, as a plow, to cut down the bank. To do this, it is often desirable to make the scraper eXtendto a greater extent in the direction of the bank than the position which it naturally attains when in its central or normal position. To do this, a lever, T, is arranged, which extends to the rear, ter-` minating in any suitable handle. This lever extends forward through a fulcruni, V.- This fulcrum is a transverse bar hung to the frame by brackets Y, the bar standing in an oblique plane. Centrally through the `bar is an open'- ing `and through which the lever extends, as`

seen in, Figs. land 2. The lever is bent downward, so as to extend through the opening in the bar, and that bend permits the lever to work up and down, as occasion may require, yet retain its position upon the fulcruni. The forward end of the lever is hung, prefer` ably, to the sanie pivot as that to which the goose-neck is hung, and as seen in Fig. 2, and so that the workman taking hold of the lever at the rear may swing the lever to one side or the other, according yto the position of the bank to be worked upon, and the lever working through the fulcruin V the forward armr will force the scraper to the right or left, as the case` may be, and as indicated in broken lines, Fig. l, where the scraper is represented as thrown to the left.

The lever may be secured at any desired position to whichit maybe set so as to hold the scraper accordinglysay as by notches formed in a crossbar onthe frame, as seenin Fig. l. The link-connection by which the scraper `is hung permits this/sidewise movement of the scraper, and the lever `serves to` hold `the scraper in any positionto which it may be set.

It is desirable to lock the scraper whenthe desired position is attained. vTo this end a rib, Z, is formed on the upper surface of the segment, and in this rib notches m are made,Y more or less in number, and on the support I alever, a, is hung, as `upon a fulcrum, r, the lever extending rearward from `the fulcrum, so as to fall into either of the notches inthe rib Z, presented thereto, and so that the operator may raise the lever, asindicated in broken lines, Fig. 2,' and disengage the lockingfle` ver from the scraper, leavingthe scraper free to be readjusted,and when the proper position isreached the lever will drop `into another notch and lock the scraper in that position. By this construction the dra-ft upon the scraper is taken substantially direct from the forward axle, and` without material strain upon the frame in rear of that point ol' connection.l Theinvention also enables thelconstruction of the machine fronriron. and Vof.r the strongest possible character.

Theiadjustmcnt of `the scraper .is universal, simple, and readily made while the scraper is in operation.

As a `counter-balance for the scraper, and whereby it may be the more readily adjusted, I arrange a vertical "cylinder, t, concentrically over the pivot between the goose-neck and. the scraper. This cylinder `is hung upon a pivot, X, (see Fig. 3,) at `its upper end, so so that it may swing to the right or left, and in this cylinder l place a spring, u, preferably a helical spring, andithrough this spring is a rod, w, having a head,;3,at its upper end, bearing upon said spring, the lower end of the rod hung to the gooseneek, as at 4, (see Fig.3,) and so that the scraper hangs upon` the said spring and by its weight will compress the spring, and to the extent that the spring is compressed to` that extent the scraper is counterbalanced, and because of` r left movement of the scraper for digging into the bank.

1. ln a road-scraper, the combination of a frame supported upon wheels at the rear and wheels at `the front, a scraper intermediate between said wheels and made adjustable `to different angles with relation to the path of` said wheels, the goose-neck G, hung near the forward axle and `extending rearward,`hung` IOO directly to the scraper independent of the l frame, substantially as described.

2. The combination of the frame supported upon wheels at the front and rear, the scraper F between said wheels, the goose-neck G,hung by its forward end to a point near the forward axle and extending rearward, its rear end hung to the scraper independent of the frame, the said scraper provided with a fixed segment, H, and the goose-neck with a corresponding support, I, through which the said segment works, substantially as described.

3. The combination of the frame supported upon wheels at the front and rear, a scraper, F, arranged between said wheels, goose-neck G, hung by its forward end near the forward axle and extending rearward, its rear end hung directly to the scraper independentof the frame, the said scraper provided with a iiXed segment, H, and thc goose-neck with the support l, through which the said segment works, the locking-lever n, hung to said goose-neck, and the segment provided with notches with which the said locl ing-lever may engage at different positions, substantially as described.

4. The combination of a frame vhung upon wheels at the front and rear, the scraper' F between said wheels, the guide-bars J, one hung at cach side of the frame and adapted to swing vertically and slide on each of said guidebars, and a link connecting said slides with the respective ends of the scraper, and mechanism, substantially such as described, to vertically adjust said guidebars, substantially as set forth.

5. rlhe combination of a frame hung upon wheels at the frontand rear, the scraperF between said wheels, the guide-bars J, hung' one upon each side of the frame and substantially parallel therewith, a slide upon each of said guide-bars, and alinl; connecting thesaid slides respectively with the end of the scraper, vertical leading-screws L lll, and a connection between the said screws and the respective guide-bars, substantially as described, and whereby said -guidebars with the scraper are made vertically adjustable.

6. The combination of a traine hung upon wheels at the front and rear, a scraper, F, be-

tween said wheels and below the frame, the goose-neck G, its forward end hung near the forward axle and extending rearward, its rear end hung to the scraper independent of the frame, guide-bars J, hung one upon each side of the frame and substantially parallel therewith, the slide on each of said guide-bars, and a link connecting each of said slides with the respective ends of the scraper, the said guidebars made vertically adjustable, substantially as described.

7. The combination of a frame hung upon wheels at the front and rear, the scraper F, arranged between said wheels and below said frame, the goose-neck G, hung by its forward end near the forward axle and extending rearward, its rear end hung to the scraper independent of the frame, the lever T, arranged through a fulcruin, Y, in rear of the scraper, the forward end of said lever hung` to the scraper, the other end extending rearward to forin a handle by which the said scraper may be adjusted, substantially as described.

S. In a road-scraper supported upon Wheels and in which the scraper is made adjustable vertically, the combination therewith of a cylinder hung in the frame above the scraper and so as to swing` laterally, a connterbalaucing-spring in said cylinder, and a connection therefrom to the scraper, substantially as described, and whereby the said spring to the extent of its power counterbalances the scraper, substantiallyr as described.

9. The combination of a franie supported upon wheels, a scraper, l?, made adjustable vertically with relation to said frame, a gooseneck hung by its forward end and extending rearward, its rear end hung to the scraper in dependent of the frame, and a counterbalancing-spring on the franiework above said scraper, and substantially concentric with the pivot between the scraper and goose-neck, substantially as and for the purpose described.

lMARCUS E. COOK.

fitnessesz JOHN E. EARLE, FRED C. EARLE. 

